Auto oil filter



Dec. 8, 1936. l. HANcE 2,063,247

AUTO OIL FILTER Filed Nov. 24, 1934 2 sheets-sheet 1 y -TToRNEY 8, 1936. l. l. HANCE AUTO on.. FILTER Filed Nov. 24, 1934 z'shets-sneet 2 INVENTOR Patented Dec. 8, 1938 P-ii'rENTl ori-ICE AUTOv OIL mm #Isaaolrvingllanoa Cano The Engineering Oonn..aoorporationof 'nleridmconnsalllmrto Gol-poration, Meriden, Connecticut Application November 24, 1934, Serial No. '154,585

4 Claims. (Cl. 21d-184) This invention relates primarily to novel and improved means or methods of attaching a lulu'icating oil iilter to an internal combustion engine or other mechanism having a recirculating lubri- 5 catingsystemsuchasairccmpressorsetc.and

has for its object to provide a quickly removable method of mounting the iilter so that it may be installed, inspected, or replaced with a minimum of eiiort and time consumption.

Another object is to eliminate the usual mounting clamps or brackets commonly used for attaching the niter to the mechanismvby mounting the filter directly by a quick detachable means to the oil nller pipe or other opening in the engine or mechanism housing communicating with the oil reservoir. Theiiltermaybeanintegralpartof 'themechanismormaybeconstructedasan acce$90111 to mechanisms in prior use.

A special object is to provide an oil filter which 20 can be readily installed by anyone on an engine which has not been provided with a. filter.

Other advantages over the commonly accepted methods of oil iilter installation will also be noticeable in this speciilcation such as providing a simple means oi inspecting the flow of oil at the filter outlet while the mechanism to which it isattached is in operation, although this is not essential to the invention.

Another object. of this methodvof mounting is to reduce to a minimum the amount oftubing necessary to make the illter installation inasmuch as the filler pipe or other opening comprising the mounting means constitutes at least a portion of the discharge pipe of the filter. From the fored going it will be seen that this method of mounting a filter very greatly reduces the cost oi' construe tion and installation.

Referring to the drawings Fig. 1 is a perspective view showing one form of the invention.

Fig. 2 is a view-.partly in section showing the manner in which the filter of Fig. 1 is mounted.

Fig. 3 is a section on the plane ofA the line I-I of Fig. 2.

45 Fig. 4 is a perspective view with parts broken away to show the positioning sleeve, drip cup, etc., on the lower end of the lr.

Fig. 5 shows a lter with a hook-like outlet the iilter.

Fig. 'I showsl a modification which substitutes an interior inlet pipe with a sliding connection for the iiiter.

Fig. ishowstherearendofthe engineofan Fig. 6 shows a swivel screw cap connection for l automobile provided with an upwardly extending pipe Il through which the oil for the crank case is supplied'. Detachably supported on the usual nlier pipe Il but in spaced relation thereto is a filter casing II containing any convenient type of filtering unit. The oil supplied to the iilter enters through the tube Il and is discharged through the pipe I2 shown in Fig. 2 as being within the supporting pipe Il but spaced therefrom in order that the pipe Il may be vented if desired.

A resilient sleeve I4 telescopes with the pipe Il for securing the filter casing in position. As illustrated in Figs. 2 and 4, where it is desired to vent the pipe III, portions of this yieldable sleeve I4 are bent up at I5 to constitute spacing lugs on which the weight of the lter casing Il is borne, or transmitted to the top of the pipe IU. The portion of the sleeve I 4 from which these lugs were stamped therefore provides openings II' through which the pipe I0 is vented. If no vent is desired the lugs may be omitted.

In Fig. 4 is shown one type of construction in which the sleeve I4 is provided with a slit or opening I4' to provide a desirable yieldability.

A guard or projecting skirt portion I6 is secured to the base of the lter casing to extend over the vent openings, if provided, at the top of the pipe 'I0 to protect it against the entrance of dirt and foreign matter getting into the oil.

The oil pressure in the system is sutllcient to force the oil up through the tube I3 and through the illter Il.

The sleeve I4 provides a quick detachable connection between the filter casing and the pipe so that when fresh oil is to be poured into the ller pipe I0 the filter casing is disconnected from the pipe, the supply tube lIl being exible and long enough to allow such quick detachment of the filter casing.

'I'he engine is usually stopped before separating the filter from the pipe III when new oil is to be poured into the crank case or when a illter is to be replaced, nevertheless there will usually be some oil in the illter which has not entirely drained out and to guard against oil dripping from the discharge pipe I2 on to the engine or elsewhere we provide a drip cup Il as shown in Figs. 2 and 4 secured around the lter discharge pipe I2 but spaced from the sleeve I4. Any drops of oil on the lower end of the pipe I2 can then run down into the drip cup I 1 when the iilter casing is inverted and after it has been removed.

of any oil running down the inside oi.' the sleeve il and dripping on to the engine or elsewhere.

The top o! the sleeve I4 is provided with a bent-over flange portion Il preferably spot welded at 2l to the guard Il adjacent the periphery oi the ilange Il. The 'sleeve Il and guard Il are securedtothecasing II inanyconvenient manner such as by spot welding or otherwise.

In those installations where it is not always convenient to stop the engine or mechanism when adding fresh oil, the. end oi the discharge pipe may be made in the i'orm oi a hook 2I asshown in Pig. 5 so that the filter may be removed, inverted and hung from the edge ot the tube I0 by means of the hook form and as its discharge oriiice is still within the pipe I 0, the mechanism need not be stopped when supplying fresh oil and furthermore the ilow through the illter can be inspected. 'I'his ligure also shows resilient members 22 formed by slitting the sleeve Il and pressing the bars between the slits outwardly thus providing a means for frictionally holding the illter in the pipe I0.

The connection between the illter casing and the pipe III need not necessarily be oi.' the type illustrated but other i'orms of connections may be used, for example, this sleeve might fit outside the pipe or both outside and inside.

In Fig. 6 the inlet 23 is externally threaded to receive the ring 24 which has a swivel connection with the ilanged plate 25 on the bottom of the filter case. The ange 26 guards the air vents 21.

Fig. 7 shows a method of construction which dispenses with the flexible tube I3 shown in Figs. l etc. and in which the oil inlet and the outlet I2 are in the same end of the filter and quite closely positioned in respect to one another. The

inlet tube 50 which carries oil from the pressure lubricating system from the engine or mechanism is a sliding and substantially oil tight ilt in the illter casing and the filter may be retained in its proper location by any of the methods previously mentioned or described, the method oi Fig. 6, however, being illustrated.

In installations where the ltered oil is not directed to a part requiring lubrication, it is not essential to provide a by-pass or pressure relief valve. In installations where the ltered oil is directed to a part requiring lubrication, it is desirable to provide a by-pass around the illter between the tube I3 and pipe I2, such by-pass passage containing a pressure reliefvalve which is normally closed but which opens and allows the cil to by-pass the lter in case the filter should become clogged. 'I'his by-pass may be located :twincreamyunderstan:amt-wherea vented form o! quick detachable nlter mounting isused,anairiiltersuchasateltpadoratube .or acompactmassoiiinewire'or fabriemaybe incorporated in the venting means tc form an air nlter allowing ingress of air butexcluding all particles ofdust and other nnely divided foreign matter and this construction may be incorporated in conjunction witha suitable air outlet forming a ventilating system for the oil reservoir. and oi course also in conjunction with an oil iilter.

The outlet pipe I2 in Figs. 1 to 4 may be either straight or curved to provide a hook as shown in Pig.5. Thedripcupllmaybeusedwitheither form.

I claim:

l.Inasystem 'aithecharacterdeseribeda filter unit having an inlet and an outlet, 'and means for detachably mounting the unit at the .nlling inlet of an oil reservoir, and means for temporarily supporting the unit inverted and in use at the lling inlet oi' the reservoir.

2. The combination with a pipe through which lubricating oil is supplied to a motor, oi a iilter enclosed in a casing supported by said pipe, a dis,- charge pipe from the iilter casing entering the rst mentioned pipe, a supply pipe for the illter conneclted to the oil pressure line of the engine wherebythe oil pump pressure is sumcient to force the oil through the filter, said lter casing being mounted on the oil filling pipe by means of a quick-detachable connection, and an inverted cup secured on said lter discharge pipe.

3. The combination with a pipe through which lubricating oil is supplied to a motor, of a illter enclosed in a casing supported by said pipe, a discharge pipe from the filter casing entering the Ailrst mentioned pipe, a supply pipe i'or the nlter connected to the oil pressure line of the engine whereby the oil pump pressure is suiiicient to force the oil through the lter, said illterv casing being mounted on the oil illling pipe by means of a quick-detachable connection, and an inverted cup secured on said tllter discharge pipe, said cup being spaced from the oil filling pipe and sleeve so that the lling pipe may be vented.

4. The combination with a pipe through which lubricating oil is supplied to the crank ca se oi a motor, of a filter casing having a resilient sleeve adapted to be slid along said pipe for trictionally and quickly attaching and detaching said hlter casing, an inverted cup shaped guard over the top of said pipe, means i'or supporting said casing and cup in spaced relation on said pipe to vent said pipe while the filter casing is in position, a filter discharge pipe extending into said supporting pipe, and another inverted cup shaped member around said illter discharge pipe within said supporting pipe and radially spaced therefrom.

ISAAC IRVING HANCE. 

